IRB-H-L-100m-Beam-RevisedThe IRB-H/L is a two wire beam detector that consists of an emitter
and receiver and covers a distance of 5 – 100m, the beam is pulsed to reduce the overall current consumption and improve the noise rejection characteristics. The emitter and receiver are synchronised via a two wire link which also supplies power to the emitter.

The detector is powered directly from the zone module, so no auxiliary power supplies are required, so when the zone is reset the detector is reset automatically.

The IRB-H/L comes complete with a termination module which fits directly on to a standard U.K dual back box, this allows the detector be surface or flush mounted. Line continuity options can be selected on the termination module and these are based on the schottky or zener diode method.

  • 5 – 100m range
  • Powered directly from zone module
  • Zone module powered from loop
  • Automatic compensation
  • Electronically Addressed
  • via zone module
  • Approved to EN54 Part 5
Ordering CodeIRB-H/L
Operating Voltage15-33V
Quiescent Current240μA
Max current in Alarm50mA
Transmission Method via zone moduleDigital Communications Using ESP
Sensitivity Range25%, 50% and 70% obscuration
Operating Temp. Range-10°C to + 50°C
Storage Temp. Range-30°C to + 70°C
Maximum Humidity95%RH – Non Condensing (at 40°C)
Case MaterialABS
Operation Range5 – 100mm